CVE-2017-11334

Published: 02 August 2017

The address_space_write_continue function in exec.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds access and guest instance crash) by leveraging use of qemu_map_ram_ptr to access guest ram block area.

Priority

Low

CVSS 3 base score: 4.4

Status

Package Release Status
qemu
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(1:2.11+dfsg-1ubuntu1)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored

Ubuntu 14.04 ESM (Trusty Tahr) Ignored

Patches:
Upstream: https://git.qemu.org/gitweb.cgi?p=qemu.git;a=commit;h=04bf2526ce87f21b32c9acba1c5518708c243ad0
Upstream: https://git.qemu.org/gitweb.cgi?p=qemu.git;a=commit;h=f5aa69bdc3418773f26747ca282c291519626ece
qemu-kvm
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Notes

AuthorNote
mdeslaur
second commit doesn't look right, lock variable used in dma
field, needs more investigation

This issue caused a regression for Xen users, and was reverted
in USN 3575-2. Since this is a low-severity issue, we are
not going to include it in a subsequent update.

References

Bugs